Yes I think people forget or dont know that ICBM's do not actually hit the earth so you would never have the chance to shoot it with any type SAM weapon as it will not come close enough. secondly the missile is no longer a missle once it re-enters the atmosphere it is just the war head so if your thinking it might be possible to shoot it down because it's huge well it isnt the boosters are only to get it into space once there it sepertes and the Warhead basically falls to it's target. think apollo mission capsules that roughly how big an object flying at thousands of Miles and hour. your only real chance to intercept an ICMB is in space. or sabotage before it launches.